Search a number
-
+
238352430 = 2357945081
BaseRepresentation
bin11100011010011…
…11100000101110
3121121111120001210
432031033200232
5442004234210
635352415250
75622651021
oct1615174056
9547446053
10238352430
111125a8788
12679a7526
133a4c4c54
14239271b8
1515dd2e20
hexe34f82e

238352430 has 16 divisors (see below), whose sum is σ = 572045904. Its totient is φ = 63560640.

The previous prime is 238352419. The next prime is 238352441. The reversal of 238352430 is 34253832.

It is an interprime number because it is at equal distance from previous prime (238352419) and next prime (238352441).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 7945081 = 238352430 / (2 + 3 + 8 + 3 + 5 + 2 + 4 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3972511 + ... + 3972570.

It is an arithmetic number, because the mean of its divisors is an integer number (35752869).

Almost surely, 2238352430 is an apocalyptic number.

238352430 is an abundant number, since it is smaller than the sum of its proper divisors (333693474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238352430 is a wasteful number, since it uses less digits than its factorization.

238352430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945091.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 238352430 is about 15438.6667170452. Note that the first 3 decimals coincide. The cubic root of 238352430 is about 620.0211838062.

The spelling of 238352430 in words is "two hundred thirty-eight million, three hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7945081 15890162 23835243 39725405 47670486 79450810 119176215 238352430